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DEBUG_MUTE (set for all of stm32) already compiles every LOG_* call out entirely at the preprocessor stage, but nanopb's own error-message strings are a separate mechanism it doesn't touch - PB_RETURN_ERROR still embeds descriptive text in .rodata regardless of whether anything ever logs it. Rather than hardcoding -DPB_NO_ERRMSG=1 next to every place DEBUG_MUTE is set, derive it in bin/platformio-custom.py via the SCons build environment, mirroring the existing meshtastic-device-ui/APP_VERSION CPPDEFINES pattern already in that file. This reaches both the main project env and the Nanopb library builder specifically, since nanopb is a separate LibraryBuilder whose own CPPDEFINES aren't otherwise touched by a plain env.Append() on the app env. The CPPDEFINES membership check normalizes both bare (-DDEBUG_MUTE) and value-bearing (-DDEBUG_MUTE=1) forms, since SCons represents the latter as a tuple. DEBUG_MUTE currently only appears in variants/stm32/stm32.ini and variants/stm32/milesight_gs301/platformio.ini, so today this only affects stm32wl builds - but it will apply automatically to any future platform that sets DEBUG_MUTE too, without that platform's .ini needing to know about the pairing. Saves 1,248 bytes flash on wio-e5, no RAM change, no feature loss beyond terser protobuf decode/encode error text. Assisted-by: Claude Sonnet 5 <noreply@anthropic.com> Signed-off-by: Andrew Yong <me@ndoo.sg>
426 lines
16 KiB
Python
426 lines
16 KiB
Python
#!/usr/bin/env python3
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# trunk-ignore-all(ruff/F821)
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# trunk-ignore-all(flake8/F821): For SConstruct imports
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import sys
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from os.path import join
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import subprocess
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import json
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import re
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from datetime import datetime
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from typing import Dict
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from readprops import readProps
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Import("env")
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platform = env.PioPlatform()
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progname = env.get("PROGNAME")
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lfsbin = f"{progname.replace('firmware-', 'littlefs-')}.bin"
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manifest_ran = False
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def infer_architecture(board_cfg):
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try:
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mcu = board_cfg.get("build.mcu") if board_cfg else None
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except KeyError:
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mcu = None
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except Exception:
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mcu = None
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if not mcu:
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return None
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mcu_l = str(mcu).lower()
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if "esp32s3" in mcu_l:
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return "esp32-s3"
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if "esp32c6" in mcu_l:
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return "esp32-c6"
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if "esp32c3" in mcu_l:
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return "esp32-c3"
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if "esp32" in mcu_l:
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return "esp32"
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if "rp2040" in mcu_l:
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return "rp2040"
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if "rp2350" in mcu_l:
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return "rp2350"
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if "nrf52" in mcu_l or "nrf52840" in mcu_l:
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return "nrf52840"
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if "stm32" in mcu_l:
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return "stm32"
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return None
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def run_size_tool(env, flag, purpose):
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"""Run the toolchain size tool against the built ELF and return its output.
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Shared plumbing for compute_ram_bytes / compute_flash_bytes. Returns None
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when the ELF is missing or the tool fails; the manifest then simply omits
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the metric and downstream size reports show "n/a".
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"""
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elf = env.File(env.subst("$BUILD_DIR/${PROGNAME}.elf"))
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if not elf.exists():
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return None
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size_tool = env.subst("$SIZETOOL") or "size"
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try:
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return subprocess.check_output(
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[size_tool, flag, elf.get_abspath()],
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env=env["ENV"],
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universal_newlines=True,
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)
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except Exception as exc:
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print(f"mtjson: skipping {purpose} ({size_tool} failed: {exc})")
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return None
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def compute_ram_bytes(env):
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"""Static RAM usage (.data + .bss) of the ELF, via the toolchain size tool.
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Deliberately excludes heap/stack placeholder sections (e.g. the nRF52 .heap
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section): on nRF52840 the heap arena is the linker gap after .bss, so static
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RAM growth shrinks the usable heap 1:1 - which is exactly why we track it.
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Returns None when the value cannot be determined; the manifest then simply
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omits ram_bytes and downstream size reports show "n/a".
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"""
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output = run_size_tool(env, "-A", "ram_bytes")
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if output is None:
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return None
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ram = 0
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found = False
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for line in output.splitlines():
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parts = line.split()
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if len(parts) < 2:
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continue
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name = parts[0]
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# Main-SRAM static sections: .data/.bss, platform-prefixed variants (e.g.
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# ESP32 .dram0.data/.dram0.bss), and RISC-V small-data .sdata/.sbss.
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# ESP-IDF .rtc.* sections live outside the heap-competing SRAM; .heap and
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# .tdata never match.
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if name.startswith(".rtc"):
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continue
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if name in (".data", ".bss", ".sdata", ".sbss") or name.endswith(".data") or name.endswith(".bss"):
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try:
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ram += int(parts[1])
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found = True
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except ValueError:
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continue
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return ram if found else None
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def compute_flash_bytes(env):
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"""Flash footprint (text + data) of the ELF via the toolchain size tool.
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Approximates the flashed app image for targets whose packaged artifacts do
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not include a raw .bin (e.g. nRF52: hex/uf2/DFU zip only); consumed by
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bin/collect_sizes.py as a fallback flash measurement for the size report
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and the bin/ram_budgets.json budget gate. Returns None when the value
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cannot be determined; the manifest then simply omits flash_bytes.
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"""
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output = run_size_tool(env, "-B", "flash_bytes")
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if output is None:
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return None
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for line in output.splitlines():
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parts = line.split()
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if len(parts) >= 3 and parts[0].isdigit() and parts[1].isdigit():
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return int(parts[0]) + int(parts[1])
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return None
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def manifest_gather(source, target, env):
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global manifest_ran
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if manifest_ran:
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return
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# Skip manifest generation if we cannot determine architecture (host/native builds)
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board_arch = infer_architecture(env.BoardConfig())
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if not board_arch:
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print(f"Skipping mtjson generation for unknown architecture (env={env.get('PIOENV')})")
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manifest_ran = True
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return
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manifest_ran = True
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out = []
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board_platform = env.BoardConfig().get("platform")
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board_mcu = env.BoardConfig().get("build.mcu").lower()
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needs_ota_suffix = board_platform == "nordicnrf52"
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# Mapping of bin files to their target partition names
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# Maps the filename pattern to the partition name where it should be flashed
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partition_map = {
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f"{progname}.bin": "app0", # primary application slot (app0 / OTA_0)
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lfsbin: "spiffs", # filesystem image flashed to spiffs
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}
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check_paths = [
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progname,
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f"{progname}.elf",
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f"{progname}.bin",
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f"{progname}.factory.bin",
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f"{progname}.hex",
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f"{progname}.merged.hex",
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f"{progname}.uf2",
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f"{progname}.factory.uf2",
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f"{progname}.zip",
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lfsbin,
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f"mt-{board_mcu}-ota.bin",
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"bleota-c3.bin"
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]
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for p in check_paths:
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f = env.File(env.subst(f"$BUILD_DIR/{p}"))
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if f.exists():
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manifest_name = p
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if needs_ota_suffix and p == f"{progname}.zip":
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manifest_name = f"{progname}-ota.zip"
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d = {
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"name": manifest_name,
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"md5": f.get_content_hash(), # Returns MD5 hash
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"bytes": f.get_size() # Returns file size in bytes
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}
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# Add part_name if this file represents a partition that should be flashed
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if p in partition_map:
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d["part_name"] = partition_map[p]
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out.append(d)
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print(d)
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manifest_write(out, env, compute_ram_bytes(env), compute_flash_bytes(env))
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def manifest_write(files, env, ram_bytes=None, flash_bytes=None):
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# Defensive: also skip manifest writing if we cannot determine architecture
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def get_project_option(name):
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try:
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return env.GetProjectOption(name)
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except Exception:
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return None
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def get_project_option_any(names):
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for name in names:
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val = get_project_option(name)
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if val is not None:
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return val
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return None
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def as_bool(val):
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return str(val).strip().lower() in ("1", "true", "yes", "on")
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def as_int(val):
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try:
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return int(str(val), 10)
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except (TypeError, ValueError):
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return None
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def as_list(val):
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return [item.strip() for item in str(val).split(",") if item.strip()]
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manifest = {
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"version": verObj["long"],
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"build_epoch": build_epoch,
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"platformioTarget": env.get("PIOENV"),
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"mcu": env.get("BOARD_MCU"),
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"repo": repo_owner,
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"files": files,
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"has_mui": False,
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"has_inkhud": False,
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}
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# Static RAM footprint (.data + .bss); consumed by bin/collect_sizes.py for
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# the CI size report and the bin/ram_budgets.json budget gate.
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if ram_bytes is not None:
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manifest["ram_bytes"] = ram_bytes
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# Flash footprint (text + data); fallback flash measurement for targets
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# whose packaged artifacts include no raw .bin (e.g. nRF52).
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if flash_bytes is not None:
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manifest["flash_bytes"] = flash_bytes
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# Get partition table (generated in esp32_pre.py) if it exists
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if env.get("custom_mtjson_part"):
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# custom_mtjson_part is a JSON string, convert it back to a dict
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pj = json.loads(env.get("custom_mtjson_part"))
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manifest["part"] = pj
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# Enable has_mui for TFT builds
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if ("HAS_TFT", 1) in env.get("CPPDEFINES", []):
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manifest["has_mui"] = True
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if "MESHTASTIC_INCLUDE_INKHUD" in env.get("CPPDEFINES", []):
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manifest["has_inkhud"] = True
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pioenv = env.get("PIOENV")
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device_meta = {}
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device_meta_fields = [
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("hwModel", ["custom_meshtastic_hw_model"], as_int),
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("hwModelSlug", ["custom_meshtastic_hw_model_slug"], str),
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("architecture", ["custom_meshtastic_architecture"], str),
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("activelySupported", ["custom_meshtastic_actively_supported"], as_bool),
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("displayName", ["custom_meshtastic_display_name"], str),
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("supportLevel", ["custom_meshtastic_support_level"], as_int),
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("images", ["custom_meshtastic_images"], as_list),
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("tags", ["custom_meshtastic_tags"], as_list),
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("requiresDfu", ["custom_meshtastic_requires_dfu"], as_bool),
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("partitionScheme", ["custom_meshtastic_partition_scheme"], str),
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("url", ["custom_meshtastic_url"], str),
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("key", ["custom_meshtastic_key"], str),
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("variant", ["custom_meshtastic_variant"], str),
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]
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for manifest_key, option_keys, caster in device_meta_fields:
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raw_val = get_project_option_any(option_keys)
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if raw_val is None:
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continue
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parsed = caster(raw_val) if callable(caster) else raw_val
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if parsed is not None and parsed != "":
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device_meta[manifest_key] = parsed
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# Determine architecture once; if we can't infer it, skip manifest generation
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board_arch = device_meta.get("architecture") or infer_architecture(env.BoardConfig())
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if not board_arch:
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print(f"Skipping mtjson write for unknown architecture (env={env.get('PIOENV')})")
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return
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device_meta["architecture"] = board_arch
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# Always set requiresDfu: true for nrf52840 targets
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if board_arch == "nrf52840":
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device_meta["requiresDfu"] = True
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device_meta.setdefault("displayName", pioenv)
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device_meta.setdefault("activelySupported", False)
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if device_meta:
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manifest.update(device_meta)
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# Write the manifest to the build directory
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with open(env.subst("$BUILD_DIR/${PROGNAME}.mt.json"), "w") as f:
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json.dump(manifest, f, indent=2)
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Import("projenv")
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prefsLoc = projenv["PROJECT_DIR"] + "/version.properties"
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verObj = readProps(prefsLoc)
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print(f"Using meshtastic platformio-custom.py, firmware version {verObj['long']} on {env.get('PIOENV')}")
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# get repository owner if git is installed
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try:
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r_owner = (
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subprocess.check_output(["git", "config", "--get", "remote.origin.url"])
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.decode("utf-8")
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.strip().split("/")
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)
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repo_owner = r_owner[-2] + "/" + r_owner[-1].replace(".git", "")
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except subprocess.CalledProcessError:
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repo_owner = "unknown"
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jsonLoc = env["PROJECT_DIR"] + "/userPrefs.jsonc"
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with open(jsonLoc) as f:
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jsonStr = re.sub("//.*","", f.read(), flags=re.MULTILINE)
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userPrefs = json.loads(jsonStr)
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pref_flags = []
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# Pre-process the userPrefs
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for pref in userPrefs:
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if userPrefs[pref].startswith("{"):
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pref_flags.append("-D" + pref + "=" + userPrefs[pref])
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elif userPrefs[pref].lstrip("-").replace(".", "").isdigit():
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pref_flags.append("-D" + pref + "=" + userPrefs[pref])
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elif userPrefs[pref] == "true" or userPrefs[pref] == "false":
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pref_flags.append("-D" + pref + "=" + userPrefs[pref])
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elif userPrefs[pref].startswith("meshtastic_"):
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pref_flags.append("-D" + pref + "=" + userPrefs[pref])
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# If the value is a string, we need to wrap it in quotes
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else:
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pref_flags.append("-D" + pref + "=" + env.StringifyMacro(userPrefs[pref]) + "")
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# General options that are passed to the C and C++ compilers
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# Calculate unix epoch for current day (midnight)
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current_date = datetime.now().replace(hour=0, minute=0, second=0, microsecond=0)
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build_epoch = int(current_date.timestamp())
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flags = [
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"-DAPP_VERSION=" + verObj["long"],
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"-DAPP_VERSION_SHORT=" + verObj["short"],
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"-DAPP_ENV=" + env.get("PIOENV"),
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"-DAPP_REPO=" + repo_owner,
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"-DBUILD_EPOCH=" + str(build_epoch),
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] + pref_flags
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print("Using flags:")
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for flag in flags:
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print(flag)
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projenv.Append(
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CCFLAGS=flags,
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)
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for lb in env.GetLibBuilders():
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if lb.name == "meshtastic-device-ui":
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lb.env.Append(CPPDEFINES=[("APP_VERSION", verObj["long"])])
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break
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# DEBUG_MUTE already compiles every LOG_* call out entirely; nanopb's own error-message
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# strings are a separate mechanism it doesn't touch, so mirror the same intent into nanopb.
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debug_mute_defined = any(
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d == "DEBUG_MUTE" or (isinstance(d, tuple) and d[0] == "DEBUG_MUTE") for d in env.get("CPPDEFINES", [])
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)
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if debug_mute_defined:
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projenv.Append(CPPDEFINES=[("PB_NO_ERRMSG", 1)])
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for lb in env.GetLibBuilders():
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if lb.name == "Nanopb":
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lb.env.Append(CPPDEFINES=[("PB_NO_ERRMSG", 1)])
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break
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# Get the display resolution from macros
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def get_display_resolution(build_flags):
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# Check "DISPLAY_SIZE" to determine the screen resolution
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for flag in build_flags:
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if isinstance(flag, tuple) and flag[0] == "DISPLAY_SIZE":
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screen_width, screen_height = map(int, flag[1].split("x"))
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return screen_width, screen_height
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print("No screen resolution defined in build_flags. Please define DISPLAY_SIZE.")
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exit(1)
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def load_boot_logo(source, target, env):
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build_flags = env.get("CPPDEFINES", [])
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logo_w, logo_h = get_display_resolution(build_flags)
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print(f"TFT build with {logo_w}x{logo_h} resolution detected")
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# Load the boot logo from `branding/logo_<width>x<height>.png` if it exists
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source_path = join(env["PROJECT_DIR"], "branding", f"logo_{logo_w}x{logo_h}.png")
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dest_dir = join(env["PROJECT_DIR"], "data", "boot")
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dest_path = join(dest_dir, "logo.png")
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if env.File(source_path).exists():
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print(f"Loading boot logo from {source_path}")
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# Prepare the destination
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env.Execute(f"mkdir -p {dest_dir} && rm -f {dest_path}")
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# Copy the logo to the `data/boot` directory
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env.Execute(f"cp {source_path} {dest_path}")
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# Load the boot logo on TFT builds
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if ("HAS_TFT", 1) in env.get("CPPDEFINES", []):
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env.AddPreAction(f"$BUILD_DIR/{lfsbin}", load_boot_logo)
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board_arch = infer_architecture(env.BoardConfig())
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should_skip_manifest = board_arch is None
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# Most platforms can generate the manifest as part of the default 'buildprog' target.
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# Typically this passes success/failure properly.
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mtjson_deps = ["buildprog"]
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if platform.name == "espressif32":
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# On ESP32, we need to explicitly depend upon the binary to prevent fake-success upon failure.
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mtjson_deps = ["$BUILD_DIR/${PROGNAME}.bin"]
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# Build littlefs image as part of mtjson target
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# Equivalent to `pio run -t buildfs`
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target_lfs = env.DataToBin(
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join("$BUILD_DIR", "${ESP32_FS_IMAGE_NAME}"), "$PROJECT_DATA_DIR"
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)
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mtjson_deps.append(target_lfs)
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if should_skip_manifest:
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def skip_manifest(source, target, env):
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print(f"mtjson: skipped for native environment: {env.get('PIOENV')}")
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env.AddCustomTarget(
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name="mtjson",
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# For host/native envs, avoid depending on 'buildprog' (some targets don't define it)
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dependencies=[],
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actions=[skip_manifest],
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title="Meshtastic Manifest (skipped)",
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description="mtjson generation is skipped for native environments",
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always_build=True,
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)
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else:
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env.AddCustomTarget(
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name="mtjson",
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dependencies=mtjson_deps,
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actions=[manifest_gather],
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title="Meshtastic Manifest",
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description="Generating Meshtastic manifest JSON + Checksums",
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always_build=True,
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)
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# Run manifest generation as part of the default build pipeline for non-native builds.
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env.Default("mtjson")
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